The Website:

One Letter:

T&S YRMO­DY-Au-Lt

T&S 380504–2‑1 refers to the year of 1938, in the month of May, on 04. day of the month; to the second author—which here means Hil­de, while -1 refers to Roland—and to the first let­ter that this aut­hor wro­te on that day.

One Image:

T&S YRMO­DY-Au-Lt + i + image let­ter

T&S 401211–1‑1ib refers to the second (“b”) image (“i” = image) on that blog­ged let­ter.